127643216

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{653}}^1$

素因数の和:1323

約数の個数: 40

約数和(自身を含む): 261129120

約数和(自身を除く): 133485904

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 643, 653, 1286, 1306, 2572, 2612, 5144, 5224, 10288, 10448, 12217, 12407, 24434, 24814, 48868, 49628, 97736, 99256, 195472, 198512, 419879, 839758, 1679516, 3359032, 6718064, 7977701, 15955402, 31910804, 63821608, 127643216]

約数ペア:

[(1, 127643216), (2, 63821608), (4, 31910804), (8, 15955402), (16, 7977701), (19, 6718064), (38, 3359032), (76, 1679516), (152, 839758), (304, 419879), (643, 198512), (653, 195472), (1286, 99256), (1306, 97736), (2572, 49628), (2612, 48868), (5144, 24814), (5224, 24434), (10288, 12407), (10448, 12217)]